Failed to push voucher update to Dexperien API

a:4:{s:6:”isUsed”;b:0;s:6:”Status”;s:2:”22″;s:7:”Message”;s:95:”Error converting value “pzrmzpnh” to type ‘System.Guid’. Path ‘VoucherID’, line 6, position 25.”;s:8:”AuthCode”;N;}